Consolidated Statements Of Equity (Deficit) - USD ($) shares in Thousands, $ in Thousands	Successor [Member] Common Stock [Member]	Successor [Member] Additional Paid-In Capital [Member]	Successor [Member] Retained Earnings (Accumulated Deficit) [Member]	Successor [Member] Accumulated Other Comprehensive Income (Loss) [Member]	Successor [Member]	Predecessor [Member] Common Stock [Member]	Predecessor [Member] Additional Paid-In Capital [Member]	Predecessor [Member] Retained Earnings (Accumulated Deficit) [Member]	Predecessor [Member] Accumulated Other Comprehensive Income (Loss) [Member]	Predecessor [Member] Treasury Common Stock [Member]	Predecessor [Member]
Balance at beginning at Dec. 31, 2020						$ 27,000	$ 4,817,000	$ (8,975,000)	$ (755,000)	$ (14,000)	$ (4,900,000)
Balance (in shares) at Dec. 31, 2020						106,025				(1,232)
Stock plans										$ (1,000)	(1,000)
Stock plans (in shares)										(122)
Net income								60,000			60,000
Other comprehensive income (loss), net of tax									11,000		11,000
Balance at ending at Mar. 31, 2021						$ 27,000	$ 4,817,000	$ (8,915,000)	$ (744,000)	$ (15,000)	$ (4,830,000)
Balance (in shares) at Mar. 31, 2021						106,025				(1,354)
Balance at beginning at Dec. 31, 2021	$ 2,000	$ 4,124,000	$ 414,000	$ 60,000	$ 4,600,000
Balance (in shares) at Dec. 31, 2021	244,416
Stock plans		15,000			15,000
Stock plans (in shares)	60
Net income			65,000		65,000
Other comprehensive income (loss), net of tax				(2,000)	(2,000)
Balance at ending at Mar. 31, 2022	$ 2,000	$ 4,139,000	$ 479,000	$ 58,000	$ 4,678,000
Balance (in shares) at Mar. 31, 2022	244,476